Exit Ticket: Substitution Method

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph
• Don't touch
• Intersect
• Exist

Tags

CCSS.8.EE.C.8B

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself in one equation

• add the equations together

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = -6
-3x - 6y = 24

• (6, 6)
• (6, -6)
• (4, -6)
• (-6, 4)

Tags

CCSS.HSF-BF.B.4A

Write the new equation to solve after using the substitution process correctly for the system.

y = 5x - 7

-3x - 2y= -12

• -3(5x - 7) - 2y= -12

• -3x - 2(5x-7) = -12

• -3x -2y = 12(5x-7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the correct form of substitution?

• 3x - 8(5x-3)= - 3

• 3(5x-3)-8y = -3

• 3x - 8y = -3(5x-3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which equation is easier to solve for a variable.

• 1st

• 2nd

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Use the substitution method to solve the following system.

y = 5x - 7

-3x - 2y= -12

• (3,2)

• (2,3)

• (-2,-17)

• (-17,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6x - 3y = 3
x - 2y = 5

• (3, 1)

• (1, -3)

• (1, 3)

• (-1, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• No Solution

• (2, 2)

• (-1, 2)

• (-1, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6